619461481 has 4 divisors (see below), whose sum is σ = 620755200. Its totient is φ = 618167764.

The previous prime is 619461463. The next prime is 619461517. The reversal of 619461481 is 184164916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 619461481 - 2¹¹ = 619459433 is a prime.

It is a super-2 number, since 2×619461481² = 767465052885426722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (619461281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646141 + ... + 647098.

It is an arithmetic number, because the mean of its divisors is an integer number (155188800).

Almost surely, 2^619461481 is an apocalyptic number.

It is an amenable number.

619461481 is a deficient number, since it is larger than the sum of its proper divisors (1293719).

619461481 is a wasteful number, since it uses less digits than its factorization.

619461481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293718.

The product of its digits is 41472, while the sum is 40.

The square root of 619461481 is about 24888.9831250696. The cubic root of 619461481 is about 852.4549471523.

The spelling of 619461481 in words is "six hundred nineteen million, four hundred sixty-one thousand, four hundred eighty-one".